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42054974 = 213317563
BaseRepresentation
bin1010000001101…
…1010100111110
32221010121120122
42200123110332
541231224344
64101214542
71020314153
oct240332476
987117518
1042054974
1121814585
1212101452
138936000
14582a22a
153a5aaee
hex281b53e

42054974 has 32 divisors (see below), whose sum is σ = 72485280. Its totient is φ = 18235776.

The previous prime is 42054973. The next prime is 42055019. The reversal of 42054974 is 47945024.

42054974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74417 + ... + 74979.

It is an arithmetic number, because the mean of its divisors is an integer number (2265165).

Almost surely, 242054974 is an apocalyptic number.

42054974 is a deficient number, since it is larger than the sum of its proper divisors (30430306).

42054974 is a wasteful number, since it uses less digits than its factorization.

42054974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42054974 is about 6484.9806476195. The cubic root of 42054974 is about 347.7542579617.

Adding to 42054974 its reverse (47945024), we get a palindrome (89999998).

The spelling of 42054974 in words is "forty-two million, fifty-four thousand, nine hundred seventy-four".

Divisors: 1 2 13 17 26 34 169 221 338 442 563 1126 2197 2873 4394 5746 7319 9571 14638 19142 37349 74698 95147 124423 190294 248846 1236911 1617499 2473822 3234998 21027487 42054974